KepertWindFieldPi {TCHazaRds} | R Documentation |
Kepert Wind Field
Description
Time series vortex Wind, wind vectors. Kepert, J., 2001: The Dynamics of Boundary Layer Jets within the Tropical Cyclone Core.Part I : Linear Theory.J.Atmospheric.Science., 58, 2469 - 2484
Usage
KepertWindFieldPi(rMax, vMax, vFm, thetaFm, f, Rlam, VZ, surface)
Arguments
rMax |
radius of maximum winds in km |
vMax |
maximum wind velocity calculation in m/s |
vFm |
input forward velocity of TC |
thetaFm |
input forward direction of TC |
f |
single coriolis parameter at the centre of TC in hz |
Rlam |
two columns for distances and direction from grid points to TC centre in km |
VZ |
array two columns velocity then vorticity |
surface |
equals one if winds are reduced from the gradient level to the surface, otherwise gradient winds. |
Value
array with two columns for zonal and meridional wind speed vector-components. //@example KepertWindField(20,20,2,10,-1e-4,rbind(c(50,35),c(45,40)),rbind(c(20,2),c(22,3)))